Universal R-matrix as integral operator

Universal Whitham hierarchy, dispersionless Hirota equations and multi-component KP hierarchy

Universality for the focusing nonlinear Schroedinger equation at the gradient catastrophe point: Rational breathers and poles of the tritronquee solution to Painleve I

Universality in the profile of the semiclassical limit solutions to the focusing Nonlinear Schroedinger equation at the first breaking curve

Universality of Calogero-Moser model

Unnecessary Exact Solutions of Nonlinear Ordinary Differential Equations

Unraveling hidden hierarchies and dual structures in an integrable field model

Using an old method of Jacobi to derive Lagrangians: a nonlinear dynamical system with variable coefficients

Using the Continuous Spectrum to "Feel" Integrability: the Effect of Boundary Conditions

Vadim Kuznetsov. Informal Biography by Eyes of His First Adviser

Variable coefficient nonlinear Schrödinger equations with four-dimensional symmetry groups and analysis of their solutions

Variable Coefficient Third Order KdV Type of Equations

Variable separation approach for a differential-difference system: special Toda equation

Variational and Potential Formulation for Stochastic Partial Differential Equations

Various truncations in Painlevé analysis of PDEs

Vectorial Ribaucour Transformations for the Lame Equations

Vertex operator for the non-autonomous ultradiscrete KP equation

Vertex operator for the ultradiscrete KdV equation

Vertex operator solutions to the discrete KP-hierarchy

Virasoro and W-constraints for the $q$-KP hierarchy